这家工厂主要是加工金属零件。

Zhè jiā gōngchǎng zhǔyào shì jiāgōng jīnshǔ língjiàn.

This factory mainly processes metal parts.

农民将农产品送到加工厂进行加工。

Nóngmín jiāng nóngchǎnpǐn sòng dào jiāgōng chǎng jìnxíng jiāgōng.

Farmers send agricultural products to processing plants for processing.

这种食品经过严格的加工流程。

Zhè zhǒng shípǐn jīngguò yángé de jiāgōng liúchéng.

This food undergoes a strict processing procedure.